Beam detection pole row and beam detection device

The embodiment of the invention discloses a beam detection pole row and a beam detection device, relates to the technical field of accelerator test and calibration, and solves the problems of large error, small measurement range and the like of the beam detection device in the related technology. The beam detection pole row comprises a support member and a plurality of detection members, and the support member extends along a first direction; the plurality of detection pieces are fixedly connected to the supporting piece through connecting assemblies respectively, the plurality of detection pieces are sequentially arranged in the first direction, every two adjacent detection pieces are spaced by a preset distance and extend towards each other in the first direction to form an extension part group, and the two extension parts in the extension part group are arranged in a stacked mode in the second direction; wherein the second direction is perpendicular to the first direction, and the second direction is the b